migrate Podman to containers/common/libimage

Migrate the Podman code base over to `common/libimage` which replaces
`libpod/image` and a lot of glue code entirely.

Note that I tried to leave bread crumbs for changed tests.

Miscellaneous changes:

 * Some errors yield different messages which required to alter some
   tests.

 * I fixed some pre-existing issues in the code.  Others were marked as
   `//TODO`s to prevent the PR from exploding.

 * The `NamesHistory` of an image is returned as is from the storage.
   Previously, we did some filtering which I think is undesirable.
   Instead we should return the data as stored in the storage.

 * Touched handlers use the ABI interfaces where possible.

 * Local image resolution: previously Podman would match "foo" on
   "myfoo".  This behaviour has been changed and Podman will now
   only match on repository boundaries such that "foo" would match
   "my/foo" but not "myfoo".  I consider the old behaviour to be a
   bug, at the very least an exotic corner case.

 * Futhermore, "foo:none" does *not* resolve to a local image "foo"
   without tag anymore.  It's a hill I am (almost) willing to die on.

 * `image prune` prints the IDs of pruned images.  Previously, in some
   cases, the names were printed instead.  The API clearly states ID,
   so we should stick to it.

 * Compat endpoint image removal with _force_ deletes the entire not
   only the specified tag.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/pkg/api/handlers/utils/errors.go b/pkg/api/handlers/utils/errors.go
index d22ad414f..4a8005bfd 100644
--- a/pkg/api/handlers/utils/errors.go
+++ b/pkg/api/handlers/utils/errors.go
@@ -6,6 +6,7 @@ import (
 
 	"github.com/containers/podman/v3/libpod/define"
 	"github.com/containers/podman/v3/pkg/errorhandling"
+	"github.com/containers/storage"
 	"github.com/pkg/errors"
 	log "github.com/sirupsen/logrus"
 )
@@ -49,7 +50,7 @@ func ContainerNotFound(w http.ResponseWriter, name string, err error) {
 }
 
 func ImageNotFound(w http.ResponseWriter, name string, err error) {
-	if errors.Cause(err) != define.ErrNoSuchImage {
+	if errors.Cause(err) != storage.ErrImageUnknown {
 		InternalServerError(w, err)
 	}
 	msg := fmt.Sprintf("No such image: %s", name)